forked from extern/nushell
48 lines
1.1 KiB
Rust
48 lines
1.1 KiB
Rust
use crate::commands::WholeStreamCommand;
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use crate::errors::ShellError;
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use crate::parser::CommandRegistry;
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use crate::prelude::*;
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#[derive(Deserialize)]
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struct AppendArgs {
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row: Tagged<Value>,
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}
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pub struct Append;
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impl WholeStreamCommand for Append {
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fn name(&self) -> &str {
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"append"
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}
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fn signature(&self) -> Signature {
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Signature::build("append").required(
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"row value",
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SyntaxShape::Any,
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"the value of the row to append to the table",
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)
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}
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fn usage(&self) -> &str {
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"Append the given row to the table"
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}
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fn run(
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&self,
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args: CommandArgs,
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registry: &CommandRegistry,
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) -> Result<OutputStream, ShellError> {
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args.process(registry, append)?.run()
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}
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}
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fn append(
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AppendArgs { row }: AppendArgs,
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RunnableContext { input, .. }: RunnableContext,
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) -> Result<OutputStream, ShellError> {
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let mut after: VecDeque<Tagged<Value>> = VecDeque::new();
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after.push_back(row);
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Ok(OutputStream::from_input(input.values.chain(after)))
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}
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